Stovepipe-thimble



(No Model.)

L. M. KEAGH 8v J. O. NELSON.

STOVEPIPE THIMBLE.

'No. 507,657. Patented Oct. 31,1893.

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' r I 1 O J UNITE STATES PATENT OFFICE.

LLOYD M. KEAOH AND JOSEPH O. NELSON, OF TABLE GROVE, ILLINOIS.

STOVEPI PE-TH I M BLE.

SPECIFICATION forming part of Letters Patent No. 507,657, dated October31, 1893.

Application filed July 14, 1893. Serial ITO-480,522. (No model.)

To all whom it may concern.-

Be it known that we, LLOYD M. KEAOH and JOSEPH O. NELSON, citizens ofthe United States, residing at Table Grove, in the county of Fulton,State of Illinois, have invented certain new and useful Improvements inFlue- Stops, of which the following is a specification, reference beinghad therein to the accompanying drawings.

This invention relates to certain new and useful improvements in fluestops, having for its objects among others to provide a simple and cheapadjustable stop applicable to fines or thimbles of different diameters,and which will-give double protection against the smoke and stillprovides a good bearing to fit within the flue or thimble so as to makea perfectly tight fit, and hold firmly so as to prevent its accidentaldisplacement.

The device is composed of few parts and those readily and easilyassembled and adj usted.

Other objects and advantages of the invention will hereinafter appearand the novel features thereof will be specifically defined by theappended claims.

The invention is clearly illustrated in the accompanying drawings,which, with the let! ters of reference marked thereon, form a part ofthis specification, and in which Figure 1 is a perspective view of ourimproved flue stop. Fig. 2 is a central longitudinal section of the sameshown in position Within a flue shown also in section. Fig. 3 issectional detail showing the manner of adj ustment of the body portion.

Like letters of reference indicate like parts throughout the severalviews.

Referring now to the details of the drawings by letter, A designates asheet metal ring of suitable width, with its ends overlapped and oneprovided with a slot to extending in the general direction of the ringand to the other end there is fixed a stud or pin B which is passedthrough the slot of the other end and is screw-threaded as shown best inFig. 3 and receives a thumb nut B, a washer I) being provided as shown,if found necessary. It will be readily seen how by means of this slotand thumb nut the diameter of the ring will bechanged; the material ofwhich the ring is formed possesses suificient resiliency to make itpractically a spring ring the spring of which aids materially in holdingthe ends distended. At one edge this ring is formed with a flange Aextendin g at substantially a right angle thereto and this flange isslit at intervals as seen at a to allow the same to expand and contractas the diameter of the ring is changed.

0 is a face plate or disk of a diameter greater than the largest flue orthimble with which the stopper is to be used, and between this faceplate or disk and the plate or disk D the flange A of the ring is heldby means of a screw E which passes through a central hole in the twodisks as seen best in Fig. 2 and receiving upon its inner end within thering a thumb nut E as shown in Figs. 1 and 2. This screw is preferablysecured to a plate at carrying a handle or ring 6 by which the stoppermay be manipulated, an additional plate or Washer F being employed ifnecessary or desired, as shown in Fig. 2.

The manner of use will be apparent; the thumb nut B is turned to loosenthe overlapped ends of the ring, and the thumb nut E loosened, ifnecessary, to allow of the required movement of the ring and when theparts have been made to assume the required positions to give to thering the required diameter the thumb nut or nuts should be tightened tohold the parts in such position.

The device is simple, yet durable and efficient and can be manufacturedat a minimum cost.

What is claimed as new is- 1. A flue stopper provided with a ringportion with overlapping ends with slot and screw with thumb nut and aslit flange at right angles thereto, and plates between which saidflange is clamped, as set forth.

2. The combination with the ring portion with a portion at its inner endextending inwardly and overlapping ends one of which is provided with aslot, of the screw on the other end passed through said slot andprovided with a thumb nut, and the plates or disks with their clampingscrew and'thumb'nut for holding the ring portion, as set forth.

3. The combination with the ring portion In testimony whereof Weaffixour signatures with its overlapping ends and slot and thumb inpresence of two Witnesses. nut and screw and slit flange, of the disksLLOYD M. KEAOI-I. between which said flange 15 held, the screw N 5passed through said disks, a handle on one JObEPH NELSON end of saidscrew and a thumb nut on the Witnesses: other end, substantially asshown and de- 'l. J. KINNEY, scribed.

CHAS. I-I. HAIST.

